Over 1200 Puzzles! Relax and enjoy solving these 1200+ Hard puzzles to stay sharp and have fun! This large-print 8.5” x 11” book won’t fit in your pocket, but you can slip it in your briefcase, carry-on or beach bag and relax with a puzzle in your spare moments. You can also just tear out a page and take it with you. * Large print on white paper is very easy to read (even in dim light). * Have solution QR code go to web end of book * 1 page per 6 Sudoku * Have Sudoku Tips and Guides on first page To help you confidently select puzzles at the level you want, Puzzle Books Plus is committed to using a consistent grading standard for Sudoku books